323
This number is a composite.
The smallest palindrome whose factors are twin primes (17 * 19). [Russo]
323 doubled up (i.e., 323323) has five consecutive prime factors
which when squared and summed, yield 989, another palindrome! [De Geest]
323 is the smallest Lucas pseudoprime. [Terr]
The smallest brilliant Honaker number. [Gaydos]
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